What we realised from a recent installation was that the HC EM5600 series meter captures direction of AC current and that microinverters need to be wired into the meter with the direction of the AC toward the house, sourcing from the PV string. This is generally opposite physically for the electrician to the other loads (often House, Hot Water, Lighting). Whatever the orientation physically we require a toggle switch to call the direction of the AC watts and realPower either positive or negative, and be able to save this within a configuration backup.